What does the array [0 1] do in the "sim(‘model’,[0 1]) command of an old simulink model, 2011-ish?What does the array [0 1] do in the "sim(‘model’,[0 1]) command of an old simulink model, 2011-ish? What does the array [0 1] do in the "sim(‘model’,[0 1]) command of an old simulink model, 2011-ish? array input to sim function MATLAB Answers — New Questions

​

syms V1 V2 Vp Vn Vxp Vxn Vpx Vnx
syms Rp Rx Rn positive
Ison=((Vp/((Rp*68220)/(Rp+68220)))-(Vxp/((Rx*68220)/(Rx+68220))));
equ1=Vp==(V1+V2)-Ison*Rn;
Isop=((Vn/((Rn*68220)/(Rn+68220)))-(Vxn/((Rx*68220)/(Rx+68220))));
equ2=Vn==(V1+V2)-Isop*Rp;
Isox=((Vnx/((Rn*68220)/(Rn+68220)))-(Vpx/((Rp*68220)/(Rp+68220))));
equ3= Vpx==V1+Rx*Isox;
[Rn, Rp, Rx] = solve([equ1, equ2,equ3],[Rn , Rp, Rx]);

simplify(Rn)
simplify(Rp)
simplify(Rx)
Rn=vpa(subs(Rn,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
Rp=vpa(subs(Rp,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
Rx=vpa(subs(Rx,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
So I am trying to find values for Rn,Rx and Rp. I have three equations and three unknowns. When I use solve to find symbolic equation, I get equations for each variable. But when I sub real values in, I get an answer that is wrong or doesnt make sense. Adding assume doesnt seem to change anything and the return conditions is the same as the equations. The real values of Rn, Rp and Rx should be 2e6,1.5e6 and 700k. If you were to put these values in the original equations, you can verify that these values are correct. How do I get a system of equations that will give me the desired answer?syms V1 V2 Vp Vn Vxp Vxn Vpx Vnx
syms Rp Rx Rn positive
Ison=((Vp/((Rp*68220)/(Rp+68220)))-(Vxp/((Rx*68220)/(Rx+68220))));
equ1=Vp==(V1+V2)-Ison*Rn;
Isop=((Vn/((Rn*68220)/(Rn+68220)))-(Vxn/((Rx*68220)/(Rx+68220))));
equ2=Vn==(V1+V2)-Isop*Rp;
Isox=((Vnx/((Rn*68220)/(Rn+68220)))-(Vpx/((Rp*68220)/(Rp+68220))));
equ3= Vpx==V1+Rx*Isox;
[Rn, Rp, Rx] = solve([equ1, equ2,equ3],[Rn , Rp, Rx]);

simplify(Rn)
simplify(Rp)
simplify(Rx)
Rn=vpa(subs(Rn,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
Rp=vpa(subs(Rp,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
Rx=vpa(subs(Rx,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
So I am trying to find values for Rn,Rx and Rp. I have three equations and three unknowns. When I use solve to find symbolic equation, I get equations for each variable. But when I sub real values in, I get an answer that is wrong or doesnt make sense. Adding assume doesnt seem to change anything and the return conditions is the same as the equations. The real values of Rn, Rp and Rx should be 2e6,1.5e6 and 700k. If you were to put these values in the original equations, you can verify that these values are correct. How do I get a system of equations that will give me the desired answer? syms V1 V2 Vp Vn Vxp Vxn Vpx Vnx
syms Rp Rx Rn positive
Ison=((Vp/((Rp*68220)/(Rp+68220)))-(Vxp/((Rx*68220)/(Rx+68220))));
equ1=Vp==(V1+V2)-Ison*Rn;
Isop=((Vn/((Rn*68220)/(Rn+68220)))-(Vxn/((Rx*68220)/(Rx+68220))));
equ2=Vn==(V1+V2)-Isop*Rp;
Isox=((Vnx/((Rn*68220)/(Rn+68220)))-(Vpx/((Rp*68220)/(Rp+68220))));
equ3= Vpx==V1+Rx*Isox;
[Rn, Rp, Rx] = solve([equ1, equ2,equ3],[Rn , Rp, Rx]);

simplify(Rn)
simplify(Rp)
simplify(Rx)
Rn=vpa(subs(Rn,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
Rp=vpa(subs(Rp,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
Rx=vpa(subs(Rx,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
So I am trying to find values for Rn,Rx and Rp. I have three equations and three unknowns. When I use solve to find symbolic equation, I get equations for each variable. But when I sub real values in, I get an answer that is wrong or doesnt make sense. Adding assume doesnt seem to change anything and the return conditions is the same as the equations. The real values of Rn, Rp and Rx should be 2e6,1.5e6 and 700k. If you were to put these values in the original equations, you can verify that these values are correct. How do I get a system of equations that will give me the desired answer? solve, symbolic MATLAB Answers — New Questions

​

I’ve been trying to read data from ESP32S-Dev module to MATLAB sending over the data in bytes to make the transmission quicker. As seen below, I convert float data into bytes and then write the data. MATLAB sees the data and then creates a 1×8 array for each float value instead of just 1 value for each float. I’ve tried other methods, shown in 2nd part of MATLAB code, and it creates 1 value for each float but their wildly off (7-34 orders of magnitude)
I’ve tried different baud rates and even asked for help from the almighty ChatGPT but have not been able to crack the code. Any thoughts.
Arduino IDE code:
#include <SPI.h>

const int CS_SiPM_pot = 34;

void setup() {
// put your setup code here, to run once:
Serial.begin(115200); //Starting
delay(1000);
SPI.begin();
pinMode(CS_SiPM_pot, OUTPUT);
}

void loop() {
for (int d_pot2 = 55; d_pot2 <= 55; d_pot2 = d_pot2 + 1) //57
{
digitalWrite(CS_SiPM_pot, LOW); //LOW
delay(10); //10
SPI.transfer(d_pot2);
digitalWrite(CS_SiPM_pot, HIGH);
// put your main code here, to run repeatedly:
float newTmp[4] = { 01.00, 02.00, 03.00, 04.00 };
for (int i = 0; i < 4; i++) {
byte *byteData = (byte *)&newTmp[i];
Serial.write(byteData, sizeof(float)); // Send each float as 4 bytes
delay(10);
}
}
}

MATLAB code:
esp = serialport(‘COM5’,152000);
%%
flush(esp)
% Read 16 bytes of data (4 floats * 4 bytes per float)
numBytes = 16;
data = read(esp, numBytes, ‘uint8’);

% Convert each 4-byte sequence to a float
float1 = typecast(data(1:4)), ‘single’);
float2 = typecast(data(5:8), ‘single’);
float3 = typecast(data(9:12), ‘single’);
float4 = typecast(data(13:16), ‘single’);

disp([float1, float2, float3, float4]);

% Convert the bytes back to float values
floatValues = typecast(uint8(data), ‘single’);

% Display the result
disp(‘Float values:’);
disp(floatValues);

disp(‘Raw bytes received:’);
disp(data); % Print the raw bytes
Results from MATLAB:
Float1: 0 0 0 0 0 0 0 0
Float2: 0 3.7480 0 0 0 0 0 0
Float3: 0 2.1250 0 3.7480 0 0 0 0
Float4: 0 0 0 0 0 3.7480 0 0
data: 0 0 0 0 255 0 0 0 3 255 0 0 0 0 255 0I’ve been trying to read data from ESP32S-Dev module to MATLAB sending over the data in bytes to make the transmission quicker. As seen below, I convert float data into bytes and then write the data. MATLAB sees the data and then creates a 1×8 array for each float value instead of just 1 value for each float. I’ve tried other methods, shown in 2nd part of MATLAB code, and it creates 1 value for each float but their wildly off (7-34 orders of magnitude)
I’ve tried different baud rates and even asked for help from the almighty ChatGPT but have not been able to crack the code. Any thoughts.
Arduino IDE code:
#include <SPI.h>

const int CS_SiPM_pot = 34;

void setup() {
// put your setup code here, to run once:
Serial.begin(115200); //Starting
delay(1000);
SPI.begin();
pinMode(CS_SiPM_pot, OUTPUT);
}

void loop() {
for (int d_pot2 = 55; d_pot2 <= 55; d_pot2 = d_pot2 + 1) //57
{
digitalWrite(CS_SiPM_pot, LOW); //LOW
delay(10); //10
SPI.transfer(d_pot2);
digitalWrite(CS_SiPM_pot, HIGH);
// put your main code here, to run repeatedly:
float newTmp[4] = { 01.00, 02.00, 03.00, 04.00 };
for (int i = 0; i < 4; i++) {
byte *byteData = (byte *)&newTmp[i];
Serial.write(byteData, sizeof(float)); // Send each float as 4 bytes
delay(10);
}
}
}

MATLAB code:
esp = serialport(‘COM5’,152000);
%%
flush(esp)
% Read 16 bytes of data (4 floats * 4 bytes per float)
numBytes = 16;
data = read(esp, numBytes, ‘uint8’);

% Convert each 4-byte sequence to a float
float1 = typecast(data(1:4)), ‘single’);
float2 = typecast(data(5:8), ‘single’);
float3 = typecast(data(9:12), ‘single’);
float4 = typecast(data(13:16), ‘single’);

disp([float1, float2, float3, float4]);

% Convert the bytes back to float values
floatValues = typecast(uint8(data), ‘single’);

% Display the result
disp(‘Float values:’);
disp(floatValues);

disp(‘Raw bytes received:’);
disp(data); % Print the raw bytes
Results from MATLAB:
Float1: 0 0 0 0 0 0 0 0
Float2: 0 3.7480 0 0 0 0 0 0
Float3: 0 2.1250 0 3.7480 0 0 0 0
Float4: 0 0 0 0 0 3.7480 0 0
data: 0 0 0 0 255 0 0 0 3 255 0 0 0 0 255 0 I’ve been trying to read data from ESP32S-Dev module to MATLAB sending over the data in bytes to make the transmission quicker. As seen below, I convert float data into bytes and then write the data. MATLAB sees the data and then creates a 1×8 array for each float value instead of just 1 value for each float. I’ve tried other methods, shown in 2nd part of MATLAB code, and it creates 1 value for each float but their wildly off (7-34 orders of magnitude)
I’ve tried different baud rates and even asked for help from the almighty ChatGPT but have not been able to crack the code. Any thoughts.
Arduino IDE code:
#include <SPI.h>

const int CS_SiPM_pot = 34;

void setup() {
// put your setup code here, to run once:
Serial.begin(115200); //Starting
delay(1000);
SPI.begin();
pinMode(CS_SiPM_pot, OUTPUT);
}

void loop() {
for (int d_pot2 = 55; d_pot2 <= 55; d_pot2 = d_pot2 + 1) //57
{
digitalWrite(CS_SiPM_pot, LOW); //LOW
delay(10); //10
SPI.transfer(d_pot2);
digitalWrite(CS_SiPM_pot, HIGH);
// put your main code here, to run repeatedly:
float newTmp[4] = { 01.00, 02.00, 03.00, 04.00 };
for (int i = 0; i < 4; i++) {
byte *byteData = (byte *)&newTmp[i];
Serial.write(byteData, sizeof(float)); // Send each float as 4 bytes
delay(10);
}
}
}

MATLAB code:
esp = serialport(‘COM5’,152000);
%%
flush(esp)
% Read 16 bytes of data (4 floats * 4 bytes per float)
numBytes = 16;
data = read(esp, numBytes, ‘uint8’);

% Convert each 4-byte sequence to a float
float1 = typecast(data(1:4)), ‘single’);
float2 = typecast(data(5:8), ‘single’);
float3 = typecast(data(9:12), ‘single’);
float4 = typecast(data(13:16), ‘single’);

disp([float1, float2, float3, float4]);

% Convert the bytes back to float values
floatValues = typecast(uint8(data), ‘single’);

% Display the result
disp(‘Float values:’);
disp(floatValues);

disp(‘Raw bytes received:’);
disp(data); % Print the raw bytes
Results from MATLAB:
Float1: 0 0 0 0 0 0 0 0
Float2: 0 3.7480 0 0 0 0 0 0
Float3: 0 2.1250 0 3.7480 0 0 0 0
Float4: 0 0 0 0 0 3.7480 0 0
data: 0 0 0 0 255 0 0 0 3 255 0 0 0 0 255 0 arduino, esp32, matlab, serialport, float-to-bytes MATLAB Answers — New Questions

​

The Summery is essentially it. I created a script four months ago and accidentially used the wrong syntax (&&) and it has corrupted my Matlab Online. I can run scripts with only comments, but as soon as I add anything else I get the errors back.

Help? I am so confused

Script I am running:
%% Problem 1

k1 = 10;
k2 = 5;
k3 = 8;
k4 = 10;
k5 = 20;

L1 = [1 0 0 0;
0 1 0 0]
Error Message:

Operands to the logical AND (&&) and OR (||) operators must be convertible to logical scalar values. Use the ANY or ALL functions to
reduce operands to logical scalar values.

Error in internal.matlab.variableeditor.Actions.struct.EditActionBase/UpdateActionState (line 33)
editable = height(sRows) == 1 && (sRows(2)-sRows(1)+1 == 1);

Error in internal.matlab.variableeditor.VEActionDataService/updateActionStates (line 138)
action.UpdateActionState();

Error in internal.matlab.variableeditor.VEActionDataService/enableListenersAndUpdateActionStates (line 84)
this.updateActionStates();

Error in internal.matlab.variableeditor.VEActionDataService/initActionStates (line 54)
this.enableListenersAndUpdateActionStates();

Error in internal.matlab.datatoolsservices.actiondataservice.ActionManager/initActions (line 55)
this.ActionDataService.initActionStates();

Error in internal.matlab.variableeditor.peer.RemoteManager/callInitActionOnIdle (line 376)
ActionManager.initActions(startPath, classType);

Error in internal.matlab.variableeditor.peer.RemoteManager>@()this.callInitActionOnIdle(actionNamespace,startPath,classType,ActionManager) (line 121)
builtin(‘_dtcallback’, @() this.callInitActionOnIdle(actionNamespace, startPath, classType, ActionManager), …The Summery is essentially it. I created a script four months ago and accidentially used the wrong syntax (&&) and it has corrupted my Matlab Online. I can run scripts with only comments, but as soon as I add anything else I get the errors back.

Help? I am so confused

Script I am running:
%% Problem 1

k1 = 10;
k2 = 5;
k3 = 8;
k4 = 10;
k5 = 20;

L1 = [1 0 0 0;
0 1 0 0]
Error Message:

Operands to the logical AND (&&) and OR (||) operators must be convertible to logical scalar values. Use the ANY or ALL functions to
reduce operands to logical scalar values.

Error in internal.matlab.variableeditor.Actions.struct.EditActionBase/UpdateActionState (line 33)
editable = height(sRows) == 1 && (sRows(2)-sRows(1)+1 == 1);

Error in internal.matlab.variableeditor.VEActionDataService/updateActionStates (line 138)
action.UpdateActionState();

Error in internal.matlab.variableeditor.VEActionDataService/enableListenersAndUpdateActionStates (line 84)
this.updateActionStates();

Error in internal.matlab.variableeditor.VEActionDataService/initActionStates (line 54)
this.enableListenersAndUpdateActionStates();

Error in internal.matlab.datatoolsservices.actiondataservice.ActionManager/initActions (line 55)
this.ActionDataService.initActionStates();

Error in internal.matlab.variableeditor.peer.RemoteManager/callInitActionOnIdle (line 376)
ActionManager.initActions(startPath, classType);

Error in internal.matlab.variableeditor.peer.RemoteManager>@()this.callInitActionOnIdle(actionNamespace,startPath,classType,ActionManager) (line 121)
builtin(‘_dtcallback’, @() this.callInitActionOnIdle(actionNamespace, startPath, classType, ActionManager), … The Summery is essentially it. I created a script four months ago and accidentially used the wrong syntax (&&) and it has corrupted my Matlab Online. I can run scripts with only comments, but as soon as I add anything else I get the errors back.

Help? I am so confused

Script I am running:
%% Problem 1

k1 = 10;
k2 = 5;
k3 = 8;
k4 = 10;
k5 = 20;

L1 = [1 0 0 0;
0 1 0 0]
Error Message:

Operands to the logical AND (&&) and OR (||) operators must be convertible to logical scalar values. Use the ANY or ALL functions to
reduce operands to logical scalar values.

Error in internal.matlab.variableeditor.Actions.struct.EditActionBase/UpdateActionState (line 33)
editable = height(sRows) == 1 && (sRows(2)-sRows(1)+1 == 1);

Error in internal.matlab.variableeditor.VEActionDataService/updateActionStates (line 138)
action.UpdateActionState();

Error in internal.matlab.variableeditor.VEActionDataService/enableListenersAndUpdateActionStates (line 84)
this.updateActionStates();

Error in internal.matlab.variableeditor.VEActionDataService/initActionStates (line 54)
this.enableListenersAndUpdateActionStates();

Error in internal.matlab.datatoolsservices.actiondataservice.ActionManager/initActions (line 55)
this.ActionDataService.initActionStates();

Error in internal.matlab.variableeditor.peer.RemoteManager/callInitActionOnIdle (line 376)
ActionManager.initActions(startPath, classType);

Error in internal.matlab.variableeditor.peer.RemoteManager>@()this.callInitActionOnIdle(actionNamespace,startPath,classType,ActionManager) (line 121)
builtin(‘_dtcallback’, @() this.callInitActionOnIdle(actionNamespace, startPath, classType, ActionManager), … help, persistent error, have i broken matlab? MATLAB Answers — New Questions

​

HTML file to PDF file, error when processing base64,svg imagesHTML file to PDF file, error when processing base64,svg images HTML file to PDF file, error when processing base64,svg images html, simulink, pdf MATLAB Answers — New Questions

​

I am saving different maps, I need to compare some specific pixels, but Matlab somehow adds a line at the bottom (3 pixels) for example when I save my image, which kills everything I try to do later. Is there any method to force exportgraphics to use X pixels horizontally and Y vertically (I mean height and width)? Or when I call my figure to be X and Y dimensions? Force it not to add this line. I tried exportgraphics/export_fig they both fail at it.
It is not random, as only some specific files get the line added and always even if I try to replot, I still did not figure out why this happens, my data have the same resolution/grid.I am saving different maps, I need to compare some specific pixels, but Matlab somehow adds a line at the bottom (3 pixels) for example when I save my image, which kills everything I try to do later. Is there any method to force exportgraphics to use X pixels horizontally and Y vertically (I mean height and width)? Or when I call my figure to be X and Y dimensions? Force it not to add this line. I tried exportgraphics/export_fig they both fail at it.
It is not random, as only some specific files get the line added and always even if I try to replot, I still did not figure out why this happens, my data have the same resolution/grid. I am saving different maps, I need to compare some specific pixels, but Matlab somehow adds a line at the bottom (3 pixels) for example when I save my image, which kills everything I try to do later. Is there any method to force exportgraphics to use X pixels horizontally and Y vertically (I mean height and width)? Or when I call my figure to be X and Y dimensions? Force it not to add this line. I tried exportgraphics/export_fig they both fail at it.
It is not random, as only some specific files get the line added and always even if I try to replot, I still did not figure out why this happens, my data have the same resolution/grid. image-processing, exportgraphics MATLAB Answers — New Questions

​